Semiconductor package including antenna substrate and manufacturing method thereof

ABSTRACT

A semiconductor package includes: (1) a package substrate including an upper surface; (2) a semiconductor device disposed adjacent to the upper surface of the package substrate, the semiconductor device including an inactive surface; and (3) an antenna substrate disposed on the inactive surface of the semiconductor device.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. patent application Ser. No. 13/783,840, filed on Mar. 4, 2013, the content of which is incorporated herein by reference in its entirety.

BACKGROUND OF THE INVENTION Field of the Invention

The invention relates in general to a semiconductor package and a manufacturing method thereof, and more particularly to a semiconductor package with an antenna substrate and a manufacturing method thereof.

Description of the Related Art

Wireless communication devices, such as cell phones, typically include antennas for transmitting and receiving radio frequency (RF) signals. Conventionally, a wireless communication device includes an antenna layer and a communication module, wherein the antenna layer and the communication module are integrated together into a chip. However, when one portion of the chip, either the antenna portion or the communication module portion, is determined to be defective, the whole chip has to be discarded even if the other portion is working properly.

SUMMARY OF THE INVENTION

According to one aspect of this disclosure, a semiconductor package is provided. According to one embodiment, the semiconductor package includes: (1) a package substrate including an upper surface; (2) a semiconductor device disposed adjacent to the upper surface of the package substrate, the semiconductor device including an inactive surface; and (3) an antenna substrate disposed on the inactive surface of the semiconductor device.

According to another embodiment, the semiconductor package includes: (1) a package substrate including an upper surface; (2) a chip disposed adjacent to the upper surface of the package substrate; (3) a plurality of wires electrically connecting the chip with the package substrate; (4) an antenna substrate disposed on the chip; and (5) a spacer substrate disposed on the chip and between the antenna substrate and the package substrate to provide a space to accommodate the wires.

According to another embodiment, the semiconductor package includes: (1) a package substrate including an upper surface; (2) a semiconductor device disposed adjacent to the upper surface of the package substrate; (3) a passive component disposed adjacent to the upper surface of the package substrate; and (4) an antenna substrate disposed on the semiconductor device, the antenna substrate including a grounding layer covering the passive component.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A and FIG. 1C illustrate a cross-sectional view of an example semiconductor package according to one embodiment;

FIG. 1B illustrates a bottom view of an example antenna substrate;

FIG. 2A illustrates a cross-sectional view of an example semiconductor package according to another embodiment;

FIG. 2B illustrates a bottom view of another example antenna substrate;

FIG. 3A and FIG. 3B illustrate a cross-sectional view of an example semiconductor package according to another embodiment;

FIG. 4 illustrates a cross-sectional view of an example semiconductor package according to another embodiment;

FIG. 5A, FIG. 5B, FIG. 5C, FIG. 5D, and FIG. 5E illustrate an example manufacturing process;

FIG. 6A, FIG. 6B, FIG. 6C, FIG. 6D, and FIG. 6E illustrate an example manufacturing process.

Common reference numerals are used throughout the drawings and the detailed description to indicate similar elements. Embodiments of this disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings.

DETAILED DESCRIPTION OF THE INVENTION

It is desirable to have the benefits of an integrated semiconductor package including an antenna portion and a communication module portion of a wireless communication device without having reduced yield resulting from their integration. Embodiments disclosed herein provide such an integrated semiconductor package.

Referring to FIG. 1A, a cross-sectional view of a semiconductor package according to one embodiment is illustrated. The semiconductor package 100 includes a package substrate 110, a passive component 115, a chip 120, a package body 130 and an antenna substrate 140.

The package substrate 110 has an upper surface 110 u, a lower surface 110 b opposite the upper surface 110 u, a trace 111, a conductive via 112 and a plurality of pads 113. The trace 111 is formed on the upper surface 110 u, the conductive via 112 is extended to the lower surface 110 b from the upper surface 110 u, and the pads 113 are formed on the lower surface 110 b. The passive component 115 and the chip 120 may be electrically connected to the pads 113 through the conductive via 112. In addition, the package substrate 110 can be a multi-layered organic substrate or a ceramic substrate, for example.

The passive component 115 is disposed on the upper surface 110 u of the package substrate 110 and electrically connected to the chip 120 through the trace 111. The passive component 115 may be, for example, a resistor, an inductor or a capacitor.

The chip 120 is disposed on the upper surface 110 u of the package substrate 110. The chip 120 is coupled to the upper surface 110 u of the package substrate 110 in a “face-down” orientation and electrically connected to the package substrate 110 via a plurality of solder balls. This configuration is sometimes referred to as “flip-chip”. The chip 120 may be an active chip or SOC (system on chip). For example, the chip 120 may be a transceiver for transmitting radio frequency (RF) signals to the antenna substrate 140 and receiving RF signals from the antenna substrate 140.

The chip 120 includes an upper surface 120 u and a feeding conductive via 121 f. The chip 120 is part of a semiconductor device including a feeding layer 120 f, formed on the upper surface 120 u of the chip 120. The feeding layer 120 f is electrically connected to the package substrate 110 through the feeding conductive via 121 f. The semiconductor device further includes a grounding layer 120 g formed on the upper surface 120 u of the chip 120. The chip 120 includes a grounding conductive via 121 g electrically connecting the grounding layer 120 g and the package substrate 110. That is, the grounding layer 120 g formed on the upper surface 120 u of the chip 120 may be electrically connected to a ground potential through the grounding conductive via 121 g. The grounding conductive via 121 g and the feeding conductive via 121 f may be implemented as through-silicon vias (TSV), for example.

The package body 130 encapsulates a portion of the upper surface 110 u of the package substrate 110, the chip 120, and the antenna substrate 140. The package body 130 may include material such as novolac-based resin, epoxy-based resin, silicone-based resin or other suitable encapsulant. The package body 130 may also include suitable fillers such as powdered silicon dioxide. The package body 130 can be formed by various packaging technologies, such as, for example, compression molding, injection molding or transfer molding.

The antenna substrate 140 is disposed on the semiconductor device. In the illustrated embodiment, the antenna substrate 140 is directly disposed on the semiconductor device without an intervening layer, thereby reducing a signal transmission path and controlling electromagnetic interference (EMI). It is also contemplated that similar benefits can be attained by controlling a spacing between the antenna substrate 140 and the semiconductor device, such as to within about 500 μm, within about 400 μm, within about 300 μm, within about 200 μm, within about 100 μm, or with about 50 μm.

The antenna substrate 140 includes a core layer 141, an antenna layer 142 and a grounding layer 143. The core layer 141 includes an upper surface 141 u, a lower surface 141 b opposite the upper surface 141 u, and at least one conductive via 1411. As illustrated in the embodiment of FIG. 1A, the at least one conductive via 1411 includes at least a feeding conductive via 1411 f and a grounding conductive via 1411 g. The core layer 141 may be a silicon substrate, an organic substrate, and a ceramic substrate, for example. The antenna layer 142 and the grounding layer 143 are respectively formed on the upper surface 141 u and lower surface 141 b of the core layer 141.

The grounding layer 143 includes a feeding portion 143 f and a grounding portion 143 g spaced and electrically isolated from the feeding portion 143 f. The feeding portion 143 f directly contacts the feeding layer 120 f, and the feeding portion 143 f is electrically connected to the feeding conductive via 121 f. The grounding portion 143 g directly contacts the grounding layer 120 g, and the grounding portion 143 g is electrically connected to the ground potential through the grounding conductive via 121 g.

The grounding layer 143 can serve as a shielding layer to protect electronic components below the grounding layer 143 from EMI caused by the antenna layer 142, since the grounding portion 143 g of the grounding layer 143 is electrically connected to the ground potential. For example, in the embodiment of FIG. 1A, the grounding layer 143 of the antenna substrate 140 extends over the chip 120 and over the passive component 115 to protect the chip 120 and the passive component 115 from EMI. In another embodiment, the antenna substrate 140 may extend to a lateral surface of the package body 130, such as to lateral surface 130 s, to overlap the whole upper surface 110 u of the package substrate 110.

The antenna layer 142 is a patterned metal layer formed on the upper surface 141 u of the core layer 141. The antenna layer 142 includes a grounding portion 142 g and an antenna portion 142 a spaced and electrically isolated from the grounding portion 142 g. The antenna portion 142 a is electrically connected to the feeding portion 143 f of the grounding layer 143 through the feeding conductive via 1411 f, and the grounding portion 142 g is electrically connected to the grounding portion 143 g of the grounding layer 143 through the grounding conductive via 1411 g.

The antenna substrate 140 converts electric power into radio waves, and vice versa. In transmission, the chip 120 functioning as a radio transmitter supplies an oscillating radio frequency electric current to the antenna layer 142 through the feeding conductive via 121 f, the feeding layer 120 f, the feeding portion 143 f, and the feeding conductive via 1411 f, and the antenna layer 142 radiates the energy from the current as electromagnetic waves. In reception, the antenna layer 142 intercepts the power of electromagnetic waves to produce a voltage applied to the chip 120 functioning as a radio receiver, through the feeding conductive via 1411 f, the feeding portion 143 f, the feeding layer 120 f and the feeding conductive via 121 f The RF signal path is reduced by directly coupling the feeding conductive via 1411 f of the antenna substrate 140 to the feeding conductive via 121 f of the chip 120, and the RF signal attenuation is accordingly reduced.

As illustrated in FIG. 1A, the antenna layer 142 is encapsulated by the package body 130. However, in another embodiment, the antenna layer 142 may be exposed from the package body 130, as shown in FIG. 1C and FIG. 3B for another embodiment. In addition, the antenna substrate 140, which passes the quality test and is a known good antenna substrate (i.e., a working antenna substrate), is disposed on the chip 120 to form the semiconductor package 100. As a result, a defective antenna substrate can be found before being disposed on the chip 120, thus yield is improved and cost is reduced.

Referring to FIG. 1B, a bottom view of the antenna substrate 140 of FIG. 1A is illustrated. The grounding portion 143 g, which is spaced and electrically isolated from the feeding portion 143 f, surrounds the feeding portion 143 f Moreover, the grounding portion 143 g is extended to a lateral surface 140 s of the antenna substrate 140 to obtain the broadest shielding area.

Referring to FIG. 2A, a cross-sectional view of a semiconductor package 200 according to another embodiment is illustrated. The semiconductor package 200 includes the package substrate 110, the passive component 115, the chip 120, the package body 130, the antenna substrate 140, a grounding wire 250 g and a feeding wire 250 f.

The chip 120 is disposed on the upper surface 110 u of the package substrate 110. The chip 120 includes the upper surface 120 u, and an active surface 120 b opposite to the upper surface 120 u. The upper surface 120 u facing toward the antenna substrate 140 is an inactive surface. The active surface 120 b faces toward the package substrate 110 and is electrically connected to the package substrate 110 via a plurality of solder balls.

The package body 130 encapsulates the chip 120, the antenna substrate 140 and the grounding wire 250 g and the feeding wire 250 f.

The antenna substrate 140 is directly disposed on the chip 120 and includes the core layer 141, the antenna layer 142 and the grounding layer 143. The core layer 141 includes the upper surface 141 u, the lower surface 141 b opposite to the upper surface 141 u and the grounding conductive via 1411 g. The antenna layer 142 is formed on the upper surface 141 u of the core layer 141, and the grounding layer 143 is formed on the lower surface 141 b of the core layer 141 and directly contacts the upper surface 120 u of the chip 120.

The antenna layer 142 of the antenna substrate 140 includes the grounding portion 142 g and the antenna portion 142 a, wherein the grounding portion 142 g is electrically connected to the package substrate 110 through the grounding wire 250 g, and the antenna portion 142 a is electrically connected to the package substrate 110 through the feeding wire 250 f. The grounding layer 143 is electrically connected to the grounding portion 142 g of the antenna layer 142 through the grounding conductive via 1411 g. Accordingly, the grounding layer 143 is electrically connected to the ground potential through the grounding conductive via 1411 g, the grounding portion 142 g and the grounding wire 250 g. Through a trace 111 of the package substrate 110 and the feeding wire 250 f, an RF signal is transmitted from the antenna substrate 140 to the chip 120.

Referring to FIG. 2B, a bottom view of the antenna substrate of FIG. 2A is illustrated. The grounding layer 143 covers the entire lower surface 141 b (illustrated in FIG. 2A) of the core layer 141, that is, the grounding layer 143 is a continuous metal layer without any hollow pattern. The bottom view shown is intended to be an example and not limiting. In another embodiment, the grounding layer 143 can be a patterned grounding layer, or can cover at least about 70%, at least about 80%, at least about 90%, or at least about 95% of the lower surface 141 b. In addition, the grounding layer 143 may be extended to at least one of the lateral surfaces 140 s of the antenna substrate 140 to obtain the broadest shielding area.

Referring to FIG. 3A, a cross-sectional view of a semiconductor package 300 according to another embodiment is illustrated. The semiconductor package 300 includes the package substrate 110, the passive component 115, the chip 120, the package body 130, the antenna substrate 140, at least one conductive bond wire 360 and a spacer substrate 370.

The chip 120 may be coupled to the package substrate 110 in a “face-up” orientation, and electrically connected to the package substrate 110 via a plurality of conductive bond wires 360. The chip 120 includes the lower surface 120 u facing toward the package substrate 110 and the active surface 120 b facing toward the spacer substrate 370.

The antenna substrate 140 includes the core layer 141, the antenna layer 142 and the grounding layer 143. In the present embodiment, the structure of the grounding layer 143 is similar to that illustrated in FIG. 1 , and the similarities are not repeated here.

The spacer substrate 370 is an interposer substrate disposed between the chip 120 and the antenna substrate 140 to provide a space to accommodate the conductive bond wires 360, thus avoiding electrical connection of the conductive bond wires 360 to the grounding layer 143 of the antenna substrate 140. In the illustrated embodiment, the antenna substrate 140 is directly disposed on the spacer substrate 370, and the spacer substrate 370 is directly disposed on the chip 120, thereby reducing a signal transmission path and controlling EMI. It is also contemplated that similar benefits can be obtained by controlling a spacing between the antenna substrate 140 and the spacer substrate 370 or a spacing between the spacer substrate 370 and the chip 120, such as to within about 500 μm, within about 400 μm, within about 300 μm, within about 200 μm, within about 100 μm, or with about 50 μm.

The spacer substrate 370 is directly coupled to the chip 120 in a “face-down” orientation and electrically connected to the chip 120 via a plurality of solder balls. The spacer substrate 370 includes a base 371, a feeding layer 370 f and a grounding layer 370 g. The base 371 includes an upper surface 371 u and a lower surface 371 b, and the feeding layer 370 f and the grounding layer 370 g are formed on the upper surface 371 u. The base 371 further includes a feeding conductive via 3711 f and a grounding conductive via 3711 g, wherein the feeding conductive via 3711 f electrically connects the feeding layer 370 f and the chip 120, and the grounding conductive via 3711 g electrically connects the grounding layer 370 g and the chip 120.

Referring to FIG. 4 , a cross-sectional view of a semiconductor package 400 according to another embodiment is illustrated. The semiconductor package 400 includes the package substrate 110, the passive component 115, the chip 120, the package body 130, the antenna substrate 140, the feeding wire 250 f, the grounding wire 250 g, at least one conductive bond wire 360 and a spacer substrate 470.

The antenna substrate 140 includes the core layer 141, the antenna layer 142 and the grounding layer 143. In the present embodiment, the structure of the antenna substrate 140 is similar to that illustrated in FIG. 2 , and the similarities are not repeated here.

The feeding wire 250 f can be electrically connected to the chip 120 and the trace 111 of the package substrate 110, such that an RF signal is transmitted from the antenna substrate 140 to the chip 120 through the trace 111 of the package substrate 110 and the feeding wire 250 f. The grounding portion 142 g can be electrically connected to the ground potential through the grounding wire 250 g and the trace 111 of the package substrate 110. Since the antenna substrate 140 can be electrically connected to the package substrate 110 through the grounding wire 250 g and the feeding wire 250 f, conductive elements such as vias or traces may be omitted in the spacer substrate 470.

The spacer substrate 470 is an insulation substrate, which is formed of a material including silicon or glass, for example. The spacer substrate 470 is directly disposed on the chip 120 and has an upper surface 470 u. The antenna substrate 140 is directly disposed on the upper surface 470 u of the spacer substrate 470.

Referring to FIGS. 5A-5E, manufacturing processes according to the semiconductor package of FIG. 1A are illustrated.

Referring to FIG. 5A, the package substrate 110 is provided, wherein the package substrate 110 includes the upper surface 110 u, the lower surface 110 b, a plurality of the traces 111, a plurality of the conductive vias 112 and a plurality of the pads 113. The traces 111 are formed on the upper surface 110 u, the conductive vias 112 extend to the lower surface 110 b from the upper surface 110 u, and the pads 113 are formed on the lower surface 110 b. The pads 113 are electrically connected to the traces 111 through the conductive vias 112.

Referring to FIG. 5B, the passive component 115 and the chip 120 are disposed on the upper surface 110 u of the package substrate 110. The chip 120 is coupled to the upper surface 110 u of the package substrate 110 in a “face-down” orientation and electrically connected to the package substrate 110 via a plurality of solder balls. The chip 120 includes the upper surface 120 u, and is part of a semiconductor device that includes the feeding layer 120 f and the feeding conductive via 121 f, wherein the feeding layer 120 f is formed on the upper surface 120 u of the chip 120, and the feeding conductive via 121 f electrically connects the feeding layer 120 f and the package substrate 110.

Referring to FIG. 5C, the antenna substrate 140 is disposed on the chip 120 using, for example, surface mount technology (SMT). The antenna substrate 140, which passes the quality test and is a known good antenna substrate (i.e., a working substrate), is disposed on the chip 120. As a result, yield is improved and cost is reduced. In the illustration, the antenna substrate 140 extends horizontally to overlap the passive component 115.

The antenna substrate 140 includes the core layer 141, the antenna layer 142 and the grounding layer 143. The core layer 141 includes the upper surface 141 u, the lower surface 141 b, the grounding conductive via 1411 g and the feeding conductive via 1411 f The antenna layer 142 is formed on the upper surface 141 u of the core layer 141, and the grounding layer 143 is formed on the lower surface 141 b of the core layer 141. The antenna layer 142 includes the antenna portion 142 a and the grounding portion 142 g spaced and electrically isolated from the antenna portion 142 a, and the grounding layer 143 includes the grounding portion 143 g and the feeding portion 143 f spaced and electrically isolated from the grounding portion 143 g. The antenna portion 142 a is electrically connected to the feeding portion 143 f through the feeding conductive via 1411 f, and the grounding portion 142 g is electrically connected to the grounding portion 143 g through grounding conductive via 1411 g.

Referring to FIG. 5D, the package body 130 is formed on the upper surface 110 u of the package substrate 110, encapsulating the passive element 115, the chip 120 and the antenna substrate 140.

Referring to FIG. 5E, a number of singulation paths T1 are formed passing through the package body 130 and the package substrate 110 to form the semiconductor package 100. The singulation paths T1 are formed using a laser or another cutting tool. The lateral surfaces 130 s of the package body 130 and the lateral surface 110 s of the package substrate 110 are formed by the singulation. The lateral surface 130 s is flush with the lateral surface 110 s. In the present embodiment, the singulation method is a “full-cut method”, that is, the singulation paths T1 cut fully through the package substrate 110 and the package body 130. In another embodiment, the package body 130 and the package substrate 110 can be singulated using a “half-cut method”, that is, the singulation paths T1 cut through a portion of the package substrate 110 or a portion of the package body 130.

The method of forming the semiconductor package 200 is similar to that of forming the semiconductor package 100 of FIG. 1A, and the similarities are not repeated here.

Referring to FIGS. 6A-6E, manufacturing processes according to the semiconductor package of FIG. 3 are illustrated.

Referring to FIG. 6A, the passive component 115 and the chip 120 are disposed on the upper surface 110 u of the package substrate 110. The chip 120 is coupled to the upper surface 110 u of the package substrate 110 in a “face-up” orientation and electrically connected to the package substrate 110 via a plurality of conductive bond wires 360.

Referring to FIG. 6B, the spacer substrate 370 is disposed on the chip 120. The spacer substrate 370 is directly coupled to the chip 120 in a “face-down” orientation and electrically connected to the chip 120 via a plurality of solder balls. The spacer substrate 370 includes the base 371, the feeding layer 370 f and the grounding layer 370 g. The base 371 includes the upper surface 371 u and the lower surface 371 b, wherein the feeding layer 370 f and the grounding layer 370 g are formed on the upper surface 371 u. The base 371 further includes a feeding conductive via 3711 f and the grounding conductive via 3711 g, wherein the feeding conductive via 3711 f electrically connects the feeding layer 370 f and the chip 120, and the grounding conductive via 3711 g electrically connects the grounding layer 370 g and the chip 120.

Referring to FIG. 6C, the antenna substrate 140 is disposed on the spacer substrate 370 using, for example, SMT. The antenna substrate 140, which passes the quality test and is a known good antenna substrate (i.e., a working antenna substrate), is disposed on the spacer substrate 370. In the illustration, the antenna substrate 140 extends horizontally to overlap the passive component 115.

The antenna substrate 140 includes the core layer 141, the antenna layer 142 and the grounding layer 143, wherein the core layer 141 includes the upper surface 141 u, the lower surface 141 b, the grounding conductive via 1411 g and the feeding conductive via 1411 f The antenna layer 142 is formed on the upper surface 141 u of the core layer 141, and the grounding layer 143 is formed on the lower surface 141 b of the core layer 141. The antenna layer 142 includes the antenna portion 142 a and the grounding portion 142 g spaced and electrically isolated from the antenna portion 142 a. The grounding layer 143 includes the grounding portion 143 g and the feeding portion 143 f spaced and electrically isolated from the grounding portion 143 g. The grounding portion 143 g is electrically connected to the grounding portion 142 g through the grounding conductive via 1411 g, and the feeding portion 143 f is electrically connected to the antenna portion 142 a through the feeding conductive via 1411 f.

Referring to FIG. 6D, the package body 130 is formed on the upper surface 110 u of the package substrate 110, encapsulating the passive component 115, the chip 120, the antenna substrate 140 and the conductive bond wires 360.

Referring to FIG. 6E, a number of singulation paths T1 passing through the package body 130 and the package substrate 110 are formed to form the semiconductor package 300. The singulation paths T1 are formed using a laser or another cutting tool. The lateral surface 130 s of the package body 130 and the lateral surface 110 s of the package substrate 110 are formed, such that the lateral surface 130 s is flush with the lateral surface 110 s. In the present embodiment, the singulation method is a “full-cut method”, that is, the singulation paths T1 cut fully through the package substrate 110 and the package body 130.

The method of forming the semiconductor package 400 is similar to that of forming the semiconductor package 400 of FIG. 4 , and the similarities are not repeated here.

While the invention has been described and illustrated with reference to specific embodiments thereof, these descriptions and illustrations do not limit the invention. It should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the invention as defined by the appended claims. The illustrations may not necessarily be drawn to scale. There may be distinctions between the artistic renditions in the present disclosure and the actual apparatus due to manufacturing processes and tolerances. There may be other embodiments of the present invention which are not specifically illustrated. The specification and the drawings are to be regarded as illustrative rather than restrictive. Modifications may be made to adapt a particular situation, material, composition of matter, method, or process to the objective, spirit and scope of the invention. All such modifications are intended to be within the scope of the claims appended hereto. While the methods disclosed herein have been described with reference to particular operations performed in a particular order, it will be understood that these operations may be combined, sub-divided, or re-ordered to form an equivalent method without departing from the teachings of the invention. Accordingly, unless specifically indicated herein, the order and grouping of the operations are not limitations of the invention. 

What is claimed is:
 1. A semiconductor package comprising: a package substrate including an upper surface; a chip disposed adjacent to the upper surface of the package substrate; a plurality of wires electrically connecting the chip with the package substrate; an antenna substrate disposed on the chip; and a spacer disposed over the chip and between the antenna substrate and the package substrate, wherein the spacer is spaced apart from the wires by a gap.
 2. The semiconductor package of claim 1, wherein the wires comprise bond wires, a lateral surface of the spacer is recessed from a lateral surface of the antenna substrate to define a cavity to accommodate the bond wires, a first end of the bond wires is connected to the chip, a second end of the bond wires is connected to the package substrate, and the chip is disposed between the package substrate and the antenna substrate.
 3. The semiconductor package of claim 2, wherein a first portion of the bond wires are under a projection of the antenna substrate, and a second portion of the bond wires are outside of the projection of the antenna substrate.
 4. The semiconductor package of claim 3, wherein a topmost portion of the bond wires are at an elevation lower than that of a topmost surface of the spacer, and a bottom portion of the bond wires is at an elevation lower than an elevation of a bottommost surface of the spacer.
 5. The semiconductor package of claim 4, further comprising a package body encapsulating the bond wires, the chip, the antenna substrate and the spacer; wherein the antenna substrate comprises an antenna layer having an upper surface facing away from the chip and angled with the lateral surface of the antenna substrate, and the package body encapsulates the lateral surface of the antenna substrate and exposes the upper surface of the antenna layer.
 6. The semiconductor package of claim 5, wherein: the antenna substrate includes: a core layer including a grounding conductive via and a feeding conductive via; a grounding layer disposed on a lower surface of the core layer, the grounding layer including a feeding portion and a grounding portion; and an antenna layer including a grounding portion and an antenna portion, wherein the grounding portion of the antenna layer electrically connects with the grounding portion of the grounding layer of the antenna substrate by the grounding conductive via of the core layer, the antenna portion of the antenna layer electrically connects with the feeding portion of the grounding layer of the antenna substrate by the feeding conductive via of the core layer, the grounding portion and the antenna portion are disposed on the same surface of the core layer, and the grounding portion is spaced apart from the antenna portion.
 7. The semiconductor package of claim 6, wherein the grounding layer is disposed on the lower surface of the core layer, and the grounding portion surrounds the feeding portion and is spaced from the feeding portion; wherein the antenna layer is disposed on an upper surface of the core layer and electrically connected with the feeding portion by the feeding conductive via; wherein the spacer includes an upper surface, a feeding layer, a grounding layer, a feeding conductive via and a grounding conductive via, the feeding layer and the grounding layer of the spacer are disposed on the upper surface of the spacer; wherein the feeding portion of the grounding layer of the antenna substrate electrically connects with the chip by the feeding layer of the spacer and the feeding conductive via of the spacer, the grounding portion of the grounding layer of the antenna substrate electrically connects with the chip by the grounding layer of the spacer and the grounding conductive via of the spacer; and wherein the feeding conductive layer of the core layer of the antenna substrate is spaced apart from the feeding layer of the spacer, a width of the feeding layer of the spacer is greater than a width of the feeding conductive layer of the core layer of the antenna substrate, the grounding layer of the antenna substrate contacts the grounding layer of the spacer, and a surface of the grounding layer of the antenna substrate and a surface of the grounding layer of the spacer are at the same elevation.
 8. A semiconductor package comprising: a package substrate including an upper surface; a semiconductor device disposed adjacent to the upper surface of the package substrate; a passive component disposed adjacent to the upper surface of the package substrate; an antenna substrate disposed on the semiconductor device, wherein the semiconductor device is electrically connected to the passive component through a trace adjacent to the upper surface of the package substrate; and a ground potential layer disposed on the package substrate, wherein the grounding potential layer is located closer to the package substrate than the antenna substrate.
 9. The semiconductor package of claim 8, wherein the semiconductor device is electrically connected to the trace through a conductive bond wire, the antenna substrate comprises a grounding layer, and a portion of the conductive bond wire is exposed from the grounding layer.
 10. The semiconductor package of claim 8, further comprising a spacer disposed over the semiconductor device and between the antenna substrate and the package substrate, wherein the spacer is recessed from a lateral surface of the antenna substrate.
 11. The semiconductor package of claim 10, further comprising: a wire electrically connecting the semiconductor device to the package substrate; wherein the spacer is disposed between the antenna substrate and the package substrate to provide a space to accommodate the wire, and the spacer is spaced apart from the wire.
 12. The semiconductor package of claim 11, wherein the passive component is electrically connected to the package substrate sequentially through the trace, the wire, and the semiconductor device.
 13. The semiconductor package of claim 12, wherein the antenna substrate has a first surface facing the chip and a second surface opposite to the first surface, and the semiconductor package further comprises a package body covering the second surface of the antenna substrate.
 14. The semiconductor package of claim 13, wherein the antenna substrate further has a lateral surface extending between the first surface and the second surface, and the package body further covers the lateral surface of the antenna substrate.
 15. The semiconductor package of claim 14, further comprising a spacer disposed between the antenna substrate and the package substrate, and a portion of the package body extends between the spacer and the antenna substrate.
 16. The semiconductor package of claim 15, wherein the package body covers a lateral surface of the spacer.
 17. The semiconductor package of claim 13, wherein the antenna substrate includes a grounding layer, and the package body further covers a lateral surface of the grounding layer of the antenna substrate.
 18. The semiconductor package of claim 17, wherein the antenna substrate further includes an antenna layer, and a lateral surface of the antenna layer is coplanar with a lateral surface of the grounding layer. 